Analysis of the water-vapor-heat coupling migration of unsaturated soil slope in seasonal frozen regions
文献类型：期刊论文
| 作者 | Zhan, Yongxiang5; Zhao, Mingyang3,4,5; Qin, Lang2; Lu, Zheng5; Liu, Gang1; Yao, Hailin5 |
| 刊名 | GEOMECHANICS AND ENGINEERING
 |
| 出版日期 | 2025-02-25 |
| 卷号 | 40期号:4页码:229-238 |
| 关键词 | coupling water-vapor-heat migration phase change seasonal frozen soil region unsaturated soil slope VG model |
| ISSN号 | 2005-307X |
| DOI | 10.12989/gae.2025.40.4.229 |
| 英文摘要 | An unsaturated seasonal frozen soil slope of the Dandong-Altay highway is used as the research object. This paper is based on vapor-liquid migration and heat conduction multi-field coupling theory. The ice-water phase transition and vapor-liquid transition of water are also considered. The empirical relationship between unfrozen moisture content and ice volume fraction is introduced. A numerical model of the whole freeze-thaw process is established. The results show that: during the freezing period, the freezing depth increases faster before the temperature drops to the annual minimum temperature. Before entering the thawing period, the freezing depth is close to the maximum. After entering the thawing period, ice melting continuously absorbs heat from the frozen layer. Under the two-way action of external warming and geothermal heat, the deep freezing depth does not decrease for a long time. But it increases slowly and then decreases gradually. When the unsaturated soil slope is unfrozen, the engineering hazards of the slope caused by the migration of vapor are relatively small. After it enters the freezing state, the influence of vapor migration will increase significantly. The total volume moisture content of the frozen area is about 0.08 m3/m3 higher than without considering vapor migration. |
| 资助项目 | National Natural Science Foundation of China[41972294] ; National Natural Science Foundation of China[42077262] ; National Natural Science Foundation of China[42077261] ; Sichuan Transportation Science and Technology Project[2021-ZL-05] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001438638500001 |
| 出版者 | TECHNO-PRESS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/36778]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhao, Mingyang |
| 作者单位 | 1.CCCC Second Highway Consultants Co Ltd, Wuhan 430056, Peoples R China 2.Sichuan Chengnan Expressway Co Ltd, Chengdu 610051, Peoples R China 3.Hubei Commun Planning & Design Inst Co Ltd, Wuhan 430051, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn Safety, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhan, Yongxiang,Zhao, Mingyang,Qin, Lang,et al. Analysis of the water-vapor-heat coupling migration of unsaturated soil slope in seasonal frozen regions[J]. GEOMECHANICS AND ENGINEERING,2025,40(4):229-238. |
| APA | Zhan, Yongxiang,Zhao, Mingyang,Qin, Lang,Lu, Zheng,Liu, Gang,&Yao, Hailin.(2025).Analysis of the water-vapor-heat coupling migration of unsaturated soil slope in seasonal frozen regions.GEOMECHANICS AND ENGINEERING,40(4),229-238. |
| MLA | Zhan, Yongxiang,et al."Analysis of the water-vapor-heat coupling migration of unsaturated soil slope in seasonal frozen regions".GEOMECHANICS AND ENGINEERING 40.4(2025):229-238. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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